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This presentation provides an update of the project The presentation includes information on: Overview of research effort – Clint Moore Gopher tortoise distribution modeling – Rachel Bormann Refinement and testing of habitat models – Jeff Hepinstall-Cymerman Long-term movement and survival: field results – Alex Wright Research into population estimation and demography – Bryan Nuse Optimal selection of parcels in reserve design – Clint Moore Wrap-up – Clint Moore
New research from North Carolina State University finds that urban warming reduces growth and photosynthesis in city trees. The researchers found that insect pests are part of the problem, but that heat itself plays a more significant role.
The goal of barrier island restoration in the northern Gulf of Mexico is to restore barrier island morphology using sediment to support the functions and habitats the islands provide. Barrier island restoration typically involves placement of sediment either directly on the island footprint or within the littoral zone for system transport and distribution. The re-engineering of barrier islands presents numerous challenges and uncertainties associated with climate change induced hurricanes/storms and other dynamic components of the system such as sediment availability and erosional trends. The goal of this study was to use a collaborative SDM approach to develop two Bayesian decision network models (DMs) for restoration...
The gopher tortoise is a familiar turtle species across the southeastern Coastal Plain, but its population has declined significantly over several decades. A principal reason is that much of its primary habitat – sparse, open stands of mature pine – has been replaced by development or agriculture, or has become degraded through the suppression of low‐intensity, forage‐producing ground fires. The gopher tortoise is a “keystone” species, meaning that its disappearance from the landscape would negatively impact many other species that make use of its underground burrows. Out of concern over its decline and its important role in the ecosystem, the gopher tortoise is being considered for listing under the federal...
Abstract (from International Journal of Climatology): The weather research and forecasting (WRF) model and a combination of the regional spectral model (RSM) and the Japanese Meteorological Agency Non‐Hydrostatic Model (NHM) were used to dynamically downscale selected CMIP5 global climate models to provide 2‐km projections with hourly model output for Puerto Rico and the U.S. Virgin Islands. Two 20‐year time slices were downscaled for historical (1986–2005) and future (2041–2060) periods following RCP8.5. Projected changes to mean and extreme temperature and precipitation were quantified for Holdridge life zones within Puerto Rico and for the U.S. Virgin Islands. The evaluation reveals a persistent cold bias for...
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NOTICE: Given the large size of the MACAv2METDATA dataset, and a known issue with the data server being used to host it, initial load times may take a very long time and / or time out. Subsequent requests should be faster due to caching, but the cache clears periodically and the dataset must be rescanned prior to access. We are working on a fix for this issue. In the mean time, please use the dataset with care and make sureyou've reviewed the GDP scalability guidelines. https://my.usgs.gov/confluence/display/GeoDataPortal/Geo+Data+Portal+Scalability+Guidelines This archive contains daily downscaled meteorological and hydrological projections for the Conterminous United States at 1/24-deg resolution utilizing the...
Reserve design is a process that must address many ecological, social, and political factors to successfully identify parcels of land in need of protection to sustain wildlife populations and other natural resources. Making land acquisition choices for a large, terrestrial protected area is difficult because it occurs over a long timeframe and may involve consideration of future conditions such as climate and urbanization changes. Decision makers need to consider factors including: order of parcel purchasing given budget constraints, future uncertainty, potential future landscape-scale changes from urbanization and climate. In central Florida, two new refuges and the expansion of a third refuge are in various stages...
Abstract (from http://rspb.royalsocietypublishing.org/content/282/1806/20142608): The amount of energy consumed within an average city block is an order of magnitude higher than that consumed in any other ecosystem over a similar area. This is driven by human food inputs, but the consequence of these resources for urban animal populations is poorly understood. We investigated the role of human foods in ant diets across an urbanization gradient in Manhattan using carbon and nitrogen stable isotopes. We found that some—but not all—ant species living in Manhattan's most urbanized habitats had δ13C signatures associated with processed human foods. In particular, pavement ants ( Tetramorium sp. E) had increased levels...
Abstract (from http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0102261): The future health of ecosystems is arguably as dependent on urban sprawl as it is on human-caused climatic warming. Urban sprawl strongly impacts the urban ecosystems it creates and the natural and agro-ecosystems that it displaces and fragments. Here, we project urban sprawl changes for the next 50 years for the fast-growing Southeast U.S. Previous studies have focused on modeling population density, but the urban extent is arguably as important as population density per se in terms of its ecological and conservation impacts. We develop simulations using the SLEUTH urban growth model that complement population-driven models...
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The gopher tortoise (Gopherus polyphemus) is a familiar species across the southeastern Coastal Plain, but its population has declined significantly over the decades. One reason is that much of its primary habitat, sparse stands of mature pine, has been replaced by development or agriculture. Another is that periodic ground fires, which are important for providing needed forage for the tortoise, have been largely suppressed on the landscape. The gopher tortoise is a “keystone” species, meaning that its disappearance from the landscape would jeopardize the existence of many other species that make use of its underground burrows. Besides tortoise habitat, the uplands of the Coastal Plain contain isolated seasonal...
map background search result map search result map Science to Support Adaptive Landscape Planning and Decision Making for Gopher Tortoise Conservation Multivariate Adaptive Constructed Analogs (MACA) CMIP5 Statistically Downscaled Data for Coterminous USA Science to Support Adaptive Landscape Planning and Decision Making for Gopher Tortoise Conservation Multivariate Adaptive Constructed Analogs (MACA) CMIP5 Statistically Downscaled Data for Coterminous USA